204904280

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{104543}}^1$

素因数の和:104568

約数の個数: 48

約数和(自身を含む): 536310720

約数和(自身を除く): 331406440

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 98, 140, 196, 245, 280, 392, 490, 980, 1960, 104543, 209086, 418172, 522715, 731801, 836344, 1045430, 1463602, 2090860, 2927204, 3659005, 4181720, 5122607, 5854408, 7318010, 10245214, 14636020, 20490428, 25613035, 29272040, 40980856, 51226070, 102452140, 204904280]

約数ペア:

[(1, 204904280), (2, 102452140), (4, 51226070), (5, 40980856), (7, 29272040), (8, 25613035), (10, 20490428), (14, 14636020), (20, 10245214), (28, 7318010), (35, 5854408), (40, 5122607), (49, 4181720), (56, 3659005), (70, 2927204), (98, 2090860), (140, 1463602), (196, 1045430), (245, 836344), (280, 731801), (392, 522715), (490, 418172), (980, 209086), (1960, 104543)]